Home / 3,405.14-4,699.59-1,913.24

Finding the Fourth Proportional to 3,405.14, 4,699.59 and 1,913.24

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Solution

The fourth proportional to 3,405.14, 4,699.59 and 1,913.24 is: 2,640.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.14 : 4,699.59 = 1,913.24 : x
  2. Step 2: Convert to fraction form
    3,405.14/4,699.59 = 1,913.24/x
  3. Step 3: Cross multiply
    3,405.14x = 4,699.59 × 1,913.24
  4. Step 4: Simplify right side
    3,405.14x = 8,991,443.57
  5. Step 5: Solve for x
    x = 8,991,443.57/3,405.14
  6. Step 6: Final answer
    x = 2,640.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.